The U.S. Supreme Court has ruled that law enforcement personnel must obtain a search warrant prior to installing a GPS unit or similar tracking device on a vehicle. Let's review the exceptions to this ruling.

Whether a department's jurisdiction lies nestled among the cornfields of rural Nebraska or in the center of a major city, homemade explosives pose a very real and growing threat. But through business community involvement and greater training and awareness, some of these threats can be stopped dead in their tracks.

A deeper look at the Oklahoma City Bombing on April 19, 1995 is provided by Andrew Gumbel and Roger G. Charles in "Oklahoma City: What the Investigation Missed and Why It Still Matters." The authors construct a detailed account of the attack on the Alfred P. Murrah Federal Building by Timothy McVeigh and others, as well as giving new details about one of the most wide-ranging federal law enforcement investigations in history.

Det. Brent Hoosac of the Jupiter (Fla.) Police Department was instrumental in uncovering a burglary ring that was involved in 75 high-end residential burglaries and stole approximately $15 million worth of property.

Identifying the perpetrator and clearing innocent suspects are crucial goals of every criminal investigation, and both depend on the use of reliable evidence. The Supreme Court has applied a constitutional due process test to the admissibility of testimony about an eyewitness's pretrial ID.

A joint Louisiana State Police and FBI task force is investigating allegations that the New Orleans Saints set up general manager Mickey Loomis' booth in the Superdome so he could listen in on opposing coaches.

The Trayvon Martin tragedy has made it clear that the relationship between many African Americans and officers is still based on suspicion and mistrust. Despite so much progress, a small crack of a possible action or inaction from a single officer or agency quickly brings on a national torrent of anger and frustration.

Rhode Island law enforcement agencies plan to set up a statewide police training center, build a new headquarters, and replace aging vehicle fleets with a $230 million asset forfeiture windfall from Google.

After a research and evaluation process, 29 public safety agencies in Monmouth County, N.J., are adopting a shared software system from Spillman Technologies for dispatching, records management, mobile data computing, field reporting, and investigations.

It is the prejudice of some cops to just accept things as they appear to be. A robbery is a robbery; a burglary, a burg. But sometimes it pays to remember the slogan from "American Beauty"—"Look closer."

Police use of technology to catch criminals makes the U.S. Supreme Court nervous, as was evident in the recent Jones decision. In the absence of a recognized basis for a warrantless search, Jones does mean that a warrant must be obtained for installation andmonitoring of a GPS tracker on a suspect's vehicle.

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